Home / 1,392,117.60-2,091,286.80-1,339,240.80

Finding the Fourth Proportional to 1,392,117.60, 2,091,286.80 and 1,339,240.80

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Solution

The fourth proportional to 1,392,117.60, 2,091,286.80 and 1,339,240.80 is: 2,011,853.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,117.60 : 2,091,286.80 = 1,339,240.80 : x
  2. Step 2: Convert to fraction form
    1,392,117.60/2,091,286.80 = 1,339,240.80/x
  3. Step 3: Cross multiply
    1,392,117.60x = 2,091,286.80 × 1,339,240.80
  4. Step 4: Simplify right side
    1,392,117.60x = 2,800,736,607,061.44
  5. Step 5: Solve for x
    x = 2,800,736,607,061.44/1,392,117.60
  6. Step 6: Final answer
    x = 2,011,853.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.